Share several key factors in selecting a laboratory wastewater treatment plant process

       With the continuous development of urban construction and environmental protection industry, sewage treatment devices have become a key component of urban construction. And different types of sewage treatment devices are not the same. For the sewage generated by various laboratories, laboratory sewage treatment devices are required, and the treatment process also requires a scientific and systematic selection to ensure that the sewage can be discharged or reused after treatment. At present, there are many processes for laboratory sewage treatment. So, what factors should we consider when choosing the process of laboratory sewage treatment equipment, let's analyze it carefully.

1. Sewage quality

According to the different quality of sewage produced by different laboratories, we need to adopt different treatment methods. Usually there are physical methods, chemical methods, biological methods, etc. Among them, when using aerobic biological treatment process, attention should be paid to the biodegradability of sewage, usually requiring BOD5/COD≥ 0.3, if this value cannot meet the requirements, anaerobic biological hydrolysis and acidification can be considered to improve the biodegradability of sewage, or consider Other methods, such as: physical method or chemical method, etc.

2. Sewage treatment volume

It should be selected according to the size of the sewage. For sewage with a large amount of water or a large change, a process with strong anti-shock load capacity should be considered first, or buffer equipment such as adjustment pools should be considered to reduce adverse effects. Laboratory sewage treatment equipment

3. Sewage treatment standards

Usually, the standard requirements for sewage treatment depend on the water quality characteristics of the sewage and the whereabouts of the treated water. At present, the level of sewage treatment mainly complies with the requirements of the relevant legal systems and technical policies of the country. Usually, the environmental management department controls the discharge concentration of sewage according to the "Comprehensive Sewage Discharge Standard" and related industry discharge standards. However, some areas with relatively high economic development Stricter local emission standards are also imposed.

4. The problem of secondary pollution

For the sewage generated by different laboratories, attention should be paid to whether it will cause secondary pollution during the treatment process. For example, pharmaceutical sewage contains a large amount of organic substances (such as benzene, toluene, bromine, etc.), and organic waste gas will be discharged during the treatment process, which will affect the surrounding atmospheric environment.

5. Construction and operation costs of sewage treatment equipment

On the premise that the water treatment reaches the water quality standard, the construction and operation costs of sewage treatment equipment should be considered. Under this premise, the technological process with low engineering construction and operation cost should be paid attention to. In addition, reducing floor space is also an important measure to reduce construction costs.

6. The natural and social environment of the sewage treatment site

Laboratory sewage treatment also has a certain influence on the selection of sewage treatment process according to local terrain, climate and other natural conditions. If the local climate is cold, appropriate technical measures should be taken to make it run normally in low temperature seasons and ensure that The process of obtaining standard water quality.